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(No Model.) A. P. GRAN-GER? MACHINE FOR 'GRUSHING ORDISINTEGRATING ORBS,&c. No. 376,877

Patented Jan; 24, 1888.

625mm Gr er 2 Sheets-Sheet: 2

nnnnnnnnn n v Patented Jan. 24, 1888.

.A. R RA GER.

mh lm MAGHINE FOR GRUSHINGOR DISINTEGRATING ORES', &'c.

(No Model.)

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8 m 7 a W UNITED STATES PATENT. OFFICE.

ALVAN P. GRANGER, or DENVER, COLORADO.

MACHINE FOR c ausHmc 0R DISINTEGRATING oREs,,&.c.-

SPECIPICATIOhT forming part of Letters Patent No. 376,877, dated January24, 1888.

Application filed December 7, 1885. Serial No. 185,015.

To all whom. it may concern.-

Be it known that I, ALVAN P. GRANGER, of

Denver, county of Arapahoe, and State of Colorado, have invented certainnew and useful Improvements in Machines for Crushing or DisintegratingOres and Similar Materials; and I do hereby declare the following to bea full, clear, and exact description thereof, reference being hadto theaccompanying drawings, and to the letters of reference marked thereon,which form part of this specification.

This invention relates to a new form ofmachine for crushing ores andother similar materials; and it consists in the several mattershereinafter set forth, and pointed out in the appended claims.

in the accompanying drawings, Figure 1 is a sideelevation of a machinecontaining my invention. Fig. 2 is a central vertical transversesection, taken in the line a: x of Fig.1, looking in the direction ofthe arrow applied to said line.

at m of Fig. 2.

A represents a heavy revolving metal wheel mounted on a driving-shaft,A, which affords .trunnions for said whee], that are fitted to suitablebearings in a frame, (1- The wheel A has on its periphery alternatingtransverse-depressions andintervening prominen'ces, respectively markedA A. The undulations of the peripheral surface which form these depressions and prominences are not necessarily of the particular formshown, though I prefer, for some purposes of the machine, that thehollows shall descend somewhat abruptly at their forward or moreadvanced sides, reference being had to the direction in which the wheelrotates, as indicated by the arrow on Figs. 1 and 3.

Aare flanges applied to or formed upon the sides of the wheel A andextending beyondtar-wheel and fitted to enter the depressionsv A.

It is also adapted in some suitable way to rise and fall freely as the.latter is rotated beneath it. -In the present instance theroller B isthus movably held in proper relation to Fig. 3 is a central verticalsection of the operative parts, taken in the line (No model.)

the mortar-wheel by-mcans of arms or ra- Y dius-bars B, whichreceive thetrunnionsB of said roller at one. end, and at their. opposite ends arepivoted to arms 0 of the machine-J frame. a

D is an endless-belt elevator, reaching at its .foot into a hopperorreceptacle, E, into which rides on the undulating surface of themortar-.

wheel. It thus receives a suitable motion to,

discharge freely, (though this might be effected by itspitch,) and italso prevents the material fed by it'from escape beneath the spout.

from a point about on a level with the axis of the mortar-wheel, and iscurved forward beneath the mortar-wheel to a point adjacent to thelowerend of the elevator. Thisscreenchute consists of asheet-metalbottom or board, G, side boards, g, and a screen-cloth, G", secured to,said side-boardsor otherwise sustained at a suitable distance above orinside the bottom G. The screen structure G is pivoted at its upper endto arms 0 of the frame 0, and at its lower end rests upon a shaker, G byrotation of which the chute is agitated. The screen-cloth is arranged todeliver into the rear end, E, of the hopper E, whilethe bot tom board,G, stops short of the screen and delivers into a suitable receptacle, H.

7 G is a screen-chute,which desirably extends Adequate means for therotation of the mor- V through which the properly-reduced particles willpass, while the portion not sufficientlyre duced will be carried onan'ddelivered by the willbe descreen into the hopper E, to be again raised'and acted on by the crushingroller B, as before.

It is manifest that by providing an undulating orirregularsurface on themortar-wheel, and thus producing a vertically-reciprocating movement ofthe crushing'roller B, the latter will act with a power greater than.that due to its weight simply at the points at which its downwardmovement is arrested or reversed. It is also manifest that by giving themortarwheel a sufiicient speed (not great) or by making the forward end-s of the depressions abrupt the roller B may be made to drop withconsiderable force against the bottom of the depressions and thus to actas a stamp in a common stamp-mill. It is this contemplated use andaction (which will more commonly be resorted to) that has suggested thename above given to the wheel A. In view of such severe action of theroller B upon the mortar-wheel, I have shown at a steel or chilledplates applied as facings to the more exposed surfaces of themortar-wheel and a continuous steel or chilled shell, B tothesnrface ofthe rollers 13. For holding the plates at countersunk bolts a areshown,terminating at their threaded ends in recesses a in the sides ofthe wheel which accommodate the holding-nuts. The casing or shell B ofthe roller is preferably shrunk upon the roller, though, obviously, itmay be otherwise secured.

In the use of a vertically-vibrating spout, F, which drops immediatelyafter passing the prominences A of the mortar-wheel, it is evident thatthe principal discharge from said spout will be into the depression A",and that the pitch of said spout may be so arranged that it willdischarge only into said depressions. These various adjustments andoperations and the raising of the roller-stamp and of the free end ofthe spout by other means than those of the prominences A as maymanifestly be done, areintended to be all embraced in my appendedclaims.

In the understanding, also, that a wheel, A, rotating on a horizontalaxis and having an undulating peripheral surface, in combination with aradially movable crushing roller, is new, I do not wish to be restrictedto the particular form of the undulations of the wheel, to the detailsof its construction, or to the particular form of the variousaccessories. Neither do I wish to be restricted to the location of thecrushing-roller at the exact point shown, or to the radius-bars, as themeans for holding it in place while allowing the desired radial movementthereof.

I claim as my invention- 1. In a crushing-machine, the combination, witha rotating wheel mounted on a horizontal axis and having depressions inits periphery, of a crushing-roller of suitable form to enter thedepressions, arranged to ride said wheel, substantially as described.

2. The combination, in a crushing-machine,

of a rotating wheel mounted on a horizontal axis, and having on itsperiphery concaved or curved depressions alternating with elevationswhose surfaces are continuous with-those of the depressions, and avertically movable crushing-roller fitted to enter the depressions andarranged to ride the periphery of the wheel, substantially as described.

3. A rotating wheelhaving a succession of curved depressions andelevations in its periphery, the descent of the depressed surfaces beingrelatively more abrupt at their advanced than at their rear ends, incombination with a vertically-movable crushing-roller fitted to enterthe depressions and arranged to ride the wheel, substantially asdescribed.

4. The combination of arotating wheel having a series of peripheraldepressions to con tain material to be crushed, a movable stamp adaptedto enter said depressions, and camacting surfaces carried by the Wheel,operating to lift the stamp preliminary to its descentinto thedepressions, substantially as described.

5. The combination of a rotary wheel having a series of peripheraldepressions to contain material to be crushed, a movable stamprolleradapted to enter said depressions, and cam-acting surfaces carried bythe wheel, operating to lift the roller preliminary to its descent intothe depressions, substantially as described.

6. In combination with a verticallymovable crushing-roller, a wheelhaving a succession of depressions and elevations upon its periphery,and flanges at the margins of theperiphery, forming a peripheral troughin which the crushing-roller rides, substantially as described.

7. In combination with a rotating mortarwheel having a series ofdepressions in its periphery and a crushing-roller, a feed-spout whichrises and falls with the surface of the periphery of the wheel,substantially as described.

8. The, combination, with the mortar-wheel and crushing-roller, of anelevator and a vertically-vibrating spout leading from the elevator tothe wheel, substantially as described.

9. The combination, with the mortar-wheel, a crushing-roller, and ahopper, of elevator mechanism which raises the material from the hopperto the upper surface of the mortarwheel and -a screen arranged toreceive the crushed product and to deliver the tailings back to thehopper, substantially as described.

10. The eombination,with the rotating mortar-wheel and a stamp operatingon the upper surface of the wheel, of a curved screen-chute extendedbeneath the wheel and pivoted atits upper end, and a shaker for thechute, substantiall y as described.

ALVAN P. GRANGER.

\Vitnesses:

JOHN ROGER, CHARLES H. MURRAY.

